Stump-extractor



2 sheets-sheen;

(No Model.)

0, F. B. ROLA'PP.

STUMP EXTRAUTOR.

Patented Apr. 3, 1888.

N PETERS Phukwlrmvgrapncn wasmr muc (No Model. 2 Sheets-Sheet 2. I 0.'F.B. ROLAPP.

$TUMP EXTRAOTOR.

No. 880,351. v Patented Apr. 3, 1888.

UNTTED STATES PATENT @rrrc OTTO FREDERICK BERDHOLD ROLAPP, OF FULTON,KENTUCKY.

STUM P- EXTRACTOR.

SPECIFICATION forming part of Letters Patent No. 380,351, dated April 3,1888.

Application filed November 8, 1887. Serial No. 251,609.

To ctZZ whom it may concern.-

Be it known that I, O'rro FREDERICK Bann- HOLD ROLALPP, a citizen of theUnited States, residing at Fulton, in the county of Fulton and State ofKentucky, have invented certain new and useful Improvements inStump-Extractors; and I do declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertain's to make and use the same,reference being had to the accompanying drawings, and to the letters andfigures of reference marked thereon, which form a part of thisspecification.

My invention relates to improvements in stump-extractors, and has foritsobject to simplify and otherwise improve in the construction and rendermore efficient in operation this class of devices.

To these ends and to such others as the invention may relate the sameconsists in the peculiar construction and in the novel combination,arrangement, and adaptation of parts, all as more fully hereinafterdescribed, shown in the drawings, and then specifically defined in theclaims.

In the accompanying drawings, Figure 1 is a plan view of astump-extractor constructed in accordance with my invention. Fig. 2 isavertical longitudinal section on linear m of Fig. 1. Fig. 3 is avertical transverse section on line y y of Fig. 1. Fig. 4 is atransverse seclien on line of Fig. 1. Fig. 5 representsin detail thesections of the sliding box. Fig. 6 is transverse section of the same.Fig. 7 represents the details of the pivoted box.

Referring more particularly to the drawings, A represents the frame ofthe machine.

13 is the power-shaft provided at a point near its longitudinal centerwith aworm-gear, B and at its ends with cranks B This shaft is journaledwithin the adjustable j ournalboxes C C in the upper part of the frame.The construction and operation of these journals will be hereinaftermore particularly described.

D is a central transverse shaft suitably journaled within the frame ofthe machine, and carrying a worm-wheel, D", adapted to mesh with theworm B upon the powershaft B.

(No model.)

E is a spool sleeved upon the shaft D, and provided at its ends withratchet-wheels E F F are ratchet-wheels journaled upon the shaft D atthe ends of the spool E.

Gis a pawl or latch pivoted to one of the cross-timbers of the frame andadapted to engage with suitable notches formed in the periphery of theratchctwheel F, and G is a similar pawl pivoted to the outer face of thewheel Fand adapted to engage notches in the periphery of the drum E uponthe spool E.

H H are transverse shafts suitablyjournaled within the frame of themachine, one upon either side of the same,as shown. These shafts areeach provided at their inner ends with pinions H to engage thegear-wheel D and are provided at their outer ends, which project beyondthe end of the machine, with suitable bearings for cranks.

The journal 0 of the power-shaft B, which is shown in detail in Fig. 7of the drawings, is composed of the parts a, a, and a The lower section,a, is provided upon its under face with the downwardly extending rod orbolt a which passes through the timber K of the frame and serves as apivot for the j ournal-box.

The journalbox C, which forms the bearing for the opposite end of theshaft B, the details of which are shown in Figs. 5 and 6, is constructedas follows: K represents the timber forming the upper part of the frameupon one of its sides. 12 is a metallic plate set into the upper face ofthe timber, and provided with a curved recess or groove, bflwhich isT-shaped in cross-section, as shown in Fig. 6. The

lower half of the journal-box b is provided upon its under surface witha T'shaped extension, If, adapted to enter the recess 11 in the plateI). The plate 0 is pivoted at its outer end to the upper face of thetimber K at one side of the journal-box, and is formed upon the sideadjacent to the box with a shoulder, 0', thus adapting it to securelyengage the lower section of the journal-box and retain the same in placewhen turned inward. \Vhen for any reason it is desired to throw the wormB out of engagement with the gear-wheel D the section 0 is turned, so asto occupy the position shown in dotted lines in Fig. 1. The extension 6*is thus allowed to move within the recess or groove biand thepowershaftis thrown to one side, as will be readily understood.

In operation one end of the chain or rope L is secured to the spool E,and is passed through a series of pulleys, as shown at L L and L. Achain is passed around the stump to be extracted and the hook attachedto the pulleyblock M is secured to the chain, the pulleyblock N beingsecured to the lower part of the frame, as shown. If the stump is asmall one and but little power is required, the main power-shaft may bethrown out of gear and the power applied by means of a crank attached toone of the shafts H, or, if greater power is required, both the shaft Band the supplemental shafts H may be used. By releasing the pawl G fromits engagement with the ratchet-wheel E the spool is allowed to turnfreely upon the shaft D, and the chain may be run out independently ofthe operating mechanism of the machine.

While I have shown two so pplemental shafts, H, oneupon each side of themachine, and I prefer to use two, still I do not intend to limit myselfto such construction, as it is evident that one of the shafts may beomitted, if desired, without departing from the spirit of my invention.

Having thus described my invention, what I claim to be new, and desireto secure by Letters Patent, is-

1. The combination, with the power-shaft B, of a shaft, D, arranged atright angles thereto and deriving motion therefrom, and a windingratchet-wheel, E loose on said shaft D, a ratchet and pawl between saidshaft D and ratchet-wheel E, and an independent ratchet and pawl betweenthe shaft and the frame of the machine, substantially as and for thepurpose described.

2. The combination, with the frame A, the shaft D, worm-wheel D, theshaft B, and worm B, of the spool E, loose on the shaft D and carryingthe ratchet-wheel E the ratchetwheel F, fast on said shaft, and the pawlG on the frame engaging the ratchet-wheel F and engagingtheratchet-wheel E, all substantially as described, and for the purposespecified.

3. The combination, with the frame and the plate b, fixedly attachedthereto, and provided with curved recess b, T-shaped in cross-seetion,as described, of the sectional journal-box 0, provided upon its lowerface with an eXten-

